68,440 research outputs found
KISS: Stochastic Packet Inspection Classifier for UDP Traffic
This paper proposes KISS, a novel Internet classifica- tion engine. Motivated by the expected raise of UDP traffic, which stems from the momentum of Peer-to-Peer (P2P) streaming appli- cations, we propose a novel classification framework that leverages on statistical characterization of payload. Statistical signatures are derived by the means of a Chi-Square-like test, which extracts the protocol "format," but ignores the protocol "semantic" and "synchronization" rules. The signatures feed a decision process based either on the geometric distance among samples, or on Sup- port Vector Machines. KISS is very accurate, and its signatures are intrinsically robust to packet sampling, reordering, and flow asym- metry, so that it can be used on almost any network. KISS is tested in different scenarios, considering traditional client-server proto- cols, VoIP, and both traditional and new P2P Internet applications. Results are astonishing. The average True Positive percentage is 99.6%, with the worst case equal to 98.1,% while results are al- most perfect when dealing with new P2P streaming applications
Malware detection techniques for mobile devices
Mobile devices have become very popular nowadays, due to its portability and
high performance, a mobile device became a must device for persons using
information and communication technologies. In addition to hardware rapid
evolution, mobile applications are also increasing in their complexity and
performance to cover most needs of their users. Both software and hardware
design focused on increasing performance and the working hours of a mobile
device. Different mobile operating systems are being used today with different
platforms and different market shares. Like all information systems, mobile
systems are prone to malware attacks. Due to the personality feature of mobile
devices, malware detection is very important and is a must tool in each device
to protect private data and mitigate attacks. In this paper, analysis of
different malware detection techniques used for mobile operating systems is
provides. The focus of the analysis will be on the to two competing mobile
operating systems - Android and iOS. Finally, an assessment of each technique
and a summary of its advantages and disadvantages is provided. The aim of the
work is to establish a basis for developing a mobile malware detection tool
based on user profiling.Comment: 11 pages, 6 figure
LPKI - A Lightweight Public Key Infrastructure for the Mobile Environments
The non-repudiation as an essential requirement of many applications can be
provided by the asymmetric key model. With the evolution of new applications
such as mobile commerce, it is essential to provide secure and efficient
solutions for the mobile environments. The traditional public key cryptography
involves huge computational costs and is not so suitable for the
resource-constrained platforms. The elliptic curve-based approaches as the
newer solutions require certain considerations that are not taken into account
in the traditional public key infrastructures. The main contribution of this
paper is to introduce a Lightweight Public Key Infrastructure (LPKI) for the
constrained platforms such as mobile phones. It takes advantages of elliptic
curve cryptography and signcryption to decrease the computational costs and
communication overheads, and adapting to the constraints. All the computational
costs of required validations can be eliminated from end-entities by
introduction of a validation authority to the introduced infrastructure and
delegating validations to such a component. LPKI is so suitable for mobile
environments and for applications such as mobile commerce where the security is
the great concern.Comment: 6 Pages, 6 Figure
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